Whether celebrating with the Duke and Duchess William and Kate at the BAFTA Gala in L.A or attending the NYC premiere of the latest Harry Potter film, celebrity fashionistas were ready to walk the red carpet in A-list designer style. See who made the cut for this week's Fab Celebrity Style below.

Blake Lively in a white draping Marchesa gown at the BAFTA Gala.

Jennifer Lopez in a cut out Emilio Pucci gown at the BAFTA Gala.

Jennifer Garner in a navy Yves Saint Laurent gown at the BAFTA Gala.

Kate Winslet in a Ralph Lauren Collection gown at a Beijing Lancome Event.

Emma Watson in a Bottega Veneta gown at the premiere of her new 'Harry Potter' movie.